Stock-based Compensation (Summary of Share Based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 29,249	$ 38,329	$ 48,677
OP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	21,086	27,698	33,431
LTPP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	5,145	0	0
OPPs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	1,906	8,629	9,579
AO LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	430	877	3,955
Vornado stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	296	456	656
Vornado restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	292	450	649
Performance Conditioned AO LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 94	$ 219	$ 407